Improvements in electro-acoustical reproducers,申请号GB19360035608-传众专利搜索

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发明名称	Improvements in electro-acoustical reproducers
摘要
申请公布号	GB465794(A)	申请公布日期	1937.05.10
申请号	GB19360035608	申请日期	1935.11.08
申请人	CINAUDAGRAPH CORPORATION	发明人
分类号	H04R7/12;H04R7/16;H04R9/04;H04R9/06	主分类号	H04R7/12
代理机构		代理人
主权项
地址

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